BICH 410-Exam 3 || A+ Guaranteed.
The reference compound for naming D and L isomers of sugars is:
a. fructose
b. glucose
c. ribose
d. sucrose
e. glyceraldehyde correct answers e. glyceraldehyde
Which of the following monosaccharides is NOT an aldose?
a. erythose
b. glyceraldehyde
c. glucose
d. fructose
e. ribose correct answers d. fructose
Know how to identify epimers correct answers See test, E & F
Which of the following is an anomeric pair?
a. D-glucose and D-fructose
b. α-D-glucose and β-D-glucose
c. D-glucose and L-fructose
d. d-glucose and L-glucose
e. α-D-glucose and β-L-glucose correct answers b. α-D-glucose and β-D-glucose
What term describes stereoisomers that are mirror images of each other?
a. anomers
b. epimers
c. diastereomers
d. enantiomers
e. meso compound correct answers d. enantiomers
The ring structure shows β-D-gulopyranose.
What is the fisher projection? correct answers See test. Structure C.
Which of the following sugars is not a reducing sugar?
a. glucose
b. ribose
c. starch
d. galactose
e. sucrose correct answers e. sucrose
Which of the following is a disaccaride?
a. amylose
b. glycogen
c. cellulose
, d. chitin
e. none of the above correct answers e. none of the above
Which of the following polysaccharides cannot be digested by mammalian salivary, gastric, or
pancreatic enzymes?
a. amylopectin
b. amylose
c. chitin
d. glycogen
e. starch correct answers c. chitin
Which of these polysaccharides is a branched polymer?
a. amylopectin
b. chitin
c. amylose
d. cellulose
e. hylauronic acid correct answers a. amylopectin
Cellulose is
a. a linear copolymer of glucose and galactose.
b. a branced polymer of glucose.
c. a linear polymer of glucose with a α (1→4) linkages.
d. a linear polymer of glucose with a β (1→4) linkages.
e. sometimes called starch. correct answers d. a linear polymer of glucose with a β (1→4)
linkages.
Which polysaccharide is found in a helically coiled conformation?
a. chitin
b. cellulose
c. α-amylose
d. lignin
e. none of the above correct answers c. α-amylose
Which of the following is an example of heteropolysaccharide?
a. cellulose
b. hyaluronic acid
c. chitin
d. starch
e. glycogen correct answers b. hyaluronic acid
Bacterial cell walls are composed of ____________.
a. peptidoglycans
b. pectin
c. chondroitin sulfate chains
d. heparin
e. proteoglycans correct answers a. peptidoglycans
The reference compound for naming D and L isomers of sugars is:
a. fructose
b. glucose
c. ribose
d. sucrose
e. glyceraldehyde correct answers e. glyceraldehyde
Which of the following monosaccharides is NOT an aldose?
a. erythose
b. glyceraldehyde
c. glucose
d. fructose
e. ribose correct answers d. fructose
Know how to identify epimers correct answers See test, E & F
Which of the following is an anomeric pair?
a. D-glucose and D-fructose
b. α-D-glucose and β-D-glucose
c. D-glucose and L-fructose
d. d-glucose and L-glucose
e. α-D-glucose and β-L-glucose correct answers b. α-D-glucose and β-D-glucose
What term describes stereoisomers that are mirror images of each other?
a. anomers
b. epimers
c. diastereomers
d. enantiomers
e. meso compound correct answers d. enantiomers
The ring structure shows β-D-gulopyranose.
What is the fisher projection? correct answers See test. Structure C.
Which of the following sugars is not a reducing sugar?
a. glucose
b. ribose
c. starch
d. galactose
e. sucrose correct answers e. sucrose
Which of the following is a disaccaride?
a. amylose
b. glycogen
c. cellulose
, d. chitin
e. none of the above correct answers e. none of the above
Which of the following polysaccharides cannot be digested by mammalian salivary, gastric, or
pancreatic enzymes?
a. amylopectin
b. amylose
c. chitin
d. glycogen
e. starch correct answers c. chitin
Which of these polysaccharides is a branched polymer?
a. amylopectin
b. chitin
c. amylose
d. cellulose
e. hylauronic acid correct answers a. amylopectin
Cellulose is
a. a linear copolymer of glucose and galactose.
b. a branced polymer of glucose.
c. a linear polymer of glucose with a α (1→4) linkages.
d. a linear polymer of glucose with a β (1→4) linkages.
e. sometimes called starch. correct answers d. a linear polymer of glucose with a β (1→4)
linkages.
Which polysaccharide is found in a helically coiled conformation?
a. chitin
b. cellulose
c. α-amylose
d. lignin
e. none of the above correct answers c. α-amylose
Which of the following is an example of heteropolysaccharide?
a. cellulose
b. hyaluronic acid
c. chitin
d. starch
e. glycogen correct answers b. hyaluronic acid
Bacterial cell walls are composed of ____________.
a. peptidoglycans
b. pectin
c. chondroitin sulfate chains
d. heparin
e. proteoglycans correct answers a. peptidoglycans
